![]() ![]() This is good marketing strategy and policy as most users should keep their Macs up to date, but it does leave you with a challenge if you need something else. You cannot simply search the App Store for old macOS downloads. Unfortunately, Apple makes getting old versions of OS X difficult. Ensure That You Bought the Version You Need Regardless of your reason, you need a way to download and install Mac OS X from USB. Then, there are those who need the old software to develop legacy systems. ![]() Others need older versions so they can test or run legacy software. Some people just do not like the new version of OS X. People need older versions of software for a variety of reasons. During these moments, you need a simple solution to download a previous version of OS X and create a bootable macOS installer disk for it. However, there are times when you do not want the latest and greatest out there. It will always give you the best, most recent version of OS X for your system, ensuring that you are always up to date with everything. In fact, you have a couple of ways to do this: either using Disk Utility to format the drive before installing macOS or cloning your drive using a third-party tool.One of the best aspects of owning a Mac is the great upgrade system it is. macOS users can also install the OS onto a USB drive and work with the same installation that’s on your internal (and faster) drive. Linux users know that booting from a USB drive is a useful way to get into the OS. In short, we don’t recommend it, and it’s likely not supported. We also don’t know whether you’ll experience issues if you look to install an older OS you don’t own. Though, if your Mac is based on Apple Silicon, you may find incompatibilities. In theory, there’s no reason why you couldn’t boot an older version of macOS, and Apple does offer ways to install older versions on a USB. Can I boot older versions of macOS from a USB drive? Our testing gave us no issues when using a USB 2.0 to USB-C connector, so you’re able to press your older USB drives into service. Am I able to use a USB connection other than USB-C? We recommend 16GB to give yourself enough “wiggle room” when it comes to the installation process. ![]() As such, you’ll need a large enough USB drive to store Big Sur. In our experience, you will not be able to do this. Can I split an installation across multiple USB drives? Disk operations on the boot drive can be performed safely from a USB stick as well. You can now run the operating system as normal and use this USB drive to boot up your Mac. For Intel Macs, restart and hold the Option key to enter into the boot selection dialog.įor both types of machines, use your keyboard’s arrow keys to select the USB drive from the list of bootable devices, click to confirm, and your USB drive will begin to boot. ![]()
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March 2023
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